Blockchain

Google Cuts Quantum Magic-State Errors 40-Fold on Willow

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Based on a feed excerpt; full article content has not been acquired. Source evidence retrieved 15/10/2026, 23:27:24 UTC.

Briefings

Google achieved a 99.99% state fidelity in quantum computing experiments on the Willow processor, significantly improving resource estimates for quantum algorithms. This milestone validates the use of magic states in quantum computing, though the specific experimental conditions and long-term stability remain under investigation.

Key points

• Google reached a 99.99% state fidelity in quantum computing experiments on the Willow processor.
• The experiment validates the use of magic states in quantum computing for resource estimation.

Context

This finding supports the use of magic states in quantum computing, a technique previously assumed to be essential for quantum algorithms. The results were published in October 2026, marking a significant step toward practical quantum advantage.

Limitations

The evidence is limited to a single experimental snapshot from October 2026. Long-term stability and scalability of the magic state technique remain unverified, and the specific experimental conditions are not fully detailed.

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